CN217545197U - Multidirectional ground wire adjusting device - Google Patents
Multidirectional ground wire adjusting device Download PDFInfo
- Publication number
- CN217545197U CN217545197U CN202220427806.9U CN202220427806U CN217545197U CN 217545197 U CN217545197 U CN 217545197U CN 202220427806 U CN202220427806 U CN 202220427806U CN 217545197 U CN217545197 U CN 217545197U
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- Prior art keywords
- wire clamp
- soft spring
- component
- rotating shaft
- angle adjusting
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- 230000007246 mechanism Effects 0.000 claims description 49
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000033228 biological regulation Effects 0.000 abstract description 7
- 230000001174 ascending effect Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model provides a multidirectional regulation earth connection device, include: the wire clamp, the angle adjusting part, the spiral lifting part, the connecting part and the insulating rod are assembled and connected in sequence; the angle adjusting part is arranged between the wire clamp and the connecting part, sleeved on the soft spring and positioned at two radial sides of the soft spring; the spiral lifting component comprises a rotating shaft, the soft spring, a double-screw rod and the pressing tongue which is used for being matched and clamped with the wire clamp; one end of the connecting component is clamped with the rotating shaft at the bottom of the spiral lifting component, and the other end of the connecting component is connected with the insulating rod. The utility model discloses in the scheme, owing to adopted spiral lifting unit, install the interlock degree of ascending and decline control fastener through two screws at the earth connection in-process to through the direction of angle adjusting part adjustment fastener, can adapt to different earth connection demands, guarantee the firm reliable of earth connection.
Description
Technical Field
The utility model relates to a power equipment fortune dimension field especially relates to a multidirectional regulation earth connection device.
Background
The arrangement of a grounding wire in a transformer substation of a power system at present is one of technical measures for ensuring power safety, is an important content which needs to be finished when the transformer substation works on electrical equipment with all power failure or part of power failure, and is a reliable safety measure for protecting personnel from sudden power failure at a working place; when the grounding operation is carried out, the grounding wire clamp is hooked at a part needing grounding, and the clamping spring bayonet of the grounding wire clamp is driven to move oppositely by pulling the grounding wire rod, so that the grounding wire clamp and the grounding part are fastened and clamped to realize grounding. Whether installing of earth connection is reasonable, whether perfect direct relation to maintainer's personal safety, but install the in-process at the earth connection, because ground connection position or angle, install the earth connection and need find suitable height and angle, install the degree of difficulty increase, and there is the earth connection to install insecure, inconvenient scheduling problem in current fastener interlock, and use current fastener to carry out the earth connection and install the operation, the degree of difficulty is big and consume a large amount of time, can lead to electric power fortune dimension personnel to appear the phenomenon of tired use, and then can not ensure follow-up electric power system maintenance operation's smoothness and continuity, influence electric power line's safety and stability operation.
Therefore, it is desirable to provide a wire clamp capable of flexibly adjusting the angle, and having a simple overall structure, so as to ensure that the grounding wire is firmly connected to the portion to be grounded.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a multidirectional regulation earth connection device to solve prior art simple structure, can not adjust the defect of the interlock angle of earth connection.
The embodiment of the utility model provides a multidirectional regulation earth connection device, include: the wire clamp, the angle adjusting part, the spiral lifting part, the connecting part and the insulating rod are assembled and connected in sequence; the wire clamp comprises a pressing tongue which is lifted at the top of the spiral lifting part, and the pressing tongue and the wire clamp form an annular space for fixing/releasing the wire;
the angle adjusting part is cylindrical, is sleeved on the soft spring between the wire clamp and the connecting part, and is provided with two pairs of hinged steel plates serving as cylindrical side walls and positioned at two radial sides of the soft spring;
the spiral lifting component is in a rod shape and comprises a rotating shaft, the soft spring, a double lead screw and the pressing tongue which is used for being matched and clamped with the wire clamp, and the rotating shaft is a polygonal rod-shaped component; the double lead screws and the rotating shaft are respectively fixedly connected with two ends of the soft spring;
one end of the connecting component is clamped with the rotating shaft at the bottom of the spiral lifting component, and the other end of the connecting component is connected with the insulating rod.
Preferably, the angle adjusting component comprises an upper inserting pipe and a lower inserting pipe, and the upper inserting pipe and the lower inserting pipe are two pairs of sleeve-shaped cylinders with the same structure;
each pair of sleeve-type cylinders comprises two cylinders with different sizes, one cylinder is positioned at the upper end of the other cylinder, the cylinder positioned at the upper part is internally provided with threads, the cylinder positioned at the lower part is externally provided with threads, the inner diameter of the cylinder positioned at the upper part is larger than the outer diameter of the cylinder positioned at the lower part, and the two cylinders can be connected through the threads;
in addition, each pair of sleeve-type cylinders are also connected through a fixing mechanism and a connecting mechanism.
Preferably, the connecting part is sleeved with a cylinder at the bottom of the lower insertion pipe of the angle adjusting part;
the connecting part is cylindrical, and a cylindrical polygonal inner hole clamped and connected with the bottom of the lower inserting pipe is arranged in the radial direction;
and the inner wall of the lower part of the connecting part is provided with a thread connected with the outer wall of the upper part of the insulating rod.
Preferably, the upper insertion tube and the lower insertion tube may be connected by a connection mechanism; the small cylinder of the upper inserting pipe is connected with the small cylinder of the lower inserting pipe, wherein the connecting mechanism is a hinged steel plate which is symmetrical left and right and has the same structure; one side of the connecting mechanism is provided with an adjusting mechanism, and the other side of the connecting mechanism is provided with a matching mechanism at a position symmetrical to the adjusting mechanism.
Preferably, the double lead screw penetrates through the angle adjusting part and the bottom of the wire clamp to extend into the wire clamp, the top of the double lead screw is fixedly connected with the pressure tongue, the top end of the soft spring is welded at the bottom of the double lead screw, the bottom end of the soft spring is welded at the upper part of the rotating shaft, and the soft spring is installed inside the angle adjusting part.
Preferably, the top of the connecting part is provided with a pin slot, and the pin slot is in a T shape.
Preferably, the wire clamp further comprises a ground wire connecting mechanism arranged on the front side.
Preferably, the pressing tongue is fixedly connected with a thread part of the wire clamp.
Compared with the prior art, the utility model has the advantages of it is following:
by adopting the scheme, due to the adoption of the spiral lifting device, the engaging degree of the wire clamp is controlled through the ascending and descending of the double screws in the process of installing the grounding wire, and the direction of the wire clamp is adjusted through the angle adjusting part, so that different requirements of the grounding wire can be met, and the firmness and reliability of the grounding wire are ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic view of an overall structure of a multi-directional adjusting ground wire device according to the present invention;
fig. 2 is a schematic view of an assembly structure of a wire clamp, a spiral lifting device and an angle adjusting device of the multi-directional adjusting grounding wire device provided by the present invention;
fig. 3 is a schematic structural view of an angle adjustment device of a multi-directional adjustment grounding wire device provided by the present invention;
fig. 4 is a partial schematic view of a connection component of a multi-directional adjustment grounding wire device provided by the present invention;
fig. 5 is a partial schematic view of a lower insertion tube connected to a connection member of a multi-directional adjustment grounding wire device provided by the present invention;
fig. 6 is a partial schematic view illustrating a connection part of a multi-directional adjusting grounding wire device and a lower insertion pipe.
Reference numerals:
2: wire clamping; 2-1: a ground wire connecting mechanism;
3: an angle adjusting member; 3-1: an adjustment mechanism; 3-2: a mating mechanism; 3-3: a fixing mechanism;
3-4: a connecting mechanism; 3-5: an upper plug pipe; 3-5-1: a first chucking mechanism; 3-6: a lower plug pipe;
3-6-1: a second chucking mechanism;
4: a spiral elevating member; 4-1: a rotating shaft; 4-2: a soft spring; 4-3: double lead screws; 4-4: tongue depressing;
5: a connecting member; 5-1: a pin slot;
6: an insulating rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. Based on the embodiments of the present invention, all other related embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
An embodiment of the present invention will be described below with reference to fig. 1,2. The embodiment of the utility model provides a multidirectional regulation ground clamp device, which comprises a clamp 2, an angle regulation component 3, a spiral lifting component 4, a connecting component 5 and an insulating rod 6; the spiral lifting component 4 is in a rod shape, penetrates through the wire clamp 2 and the angle adjusting component 3, substantially penetrates through the thread part of the wire clamp 2 and the inside of the angle adjusting component 3, and is clamped with the rotating part of the connecting component 5; the spiral lifting component 4 is provided with a rotating shaft 4-1, a soft spring 4-2, a double-screw rod 4-3 and a pressing tongue 4-4 for being matched and clamped with the wire clamp 2, the rotating shaft 4-1 at the bottom of the spiral lifting component 4 is connected with the connecting component 5 through the insertion connection in a pin groove 5-1 arranged at the upper part of the connecting component 5, the double-screw rod 4-3 penetrates through the angle adjusting component 3 and the bottom of the wire clamp 2 to extend into the wire clamp 2, the top of the double-screw rod 4-3 is fixedly connected with the pressing tongue 4-4, the top of the soft spring 4-2 is welded at the bottom of the double-screw rod 4-3, the bottom of the soft spring 4-2 is welded at the upper part of the rotating shaft 4-1, and the soft spring 4-2 is arranged in the angle adjusting component 3; one end of the connecting component 5 is clamped with the rod-shaped rotating part of the spiral lifting component 4, and the other end of the connecting component is connected with the insulating rod 6; the angle adjusting part 3 is cylindrical, is sleeved on the soft spring 4-2 between the wire clamp 2 and the connecting part 5, is provided with steel plates with two ends hinged, is used as a cylindrical side wall, and is positioned at two radial sides of the soft spring 4-2; the insulating rod 6 is positioned at the bottom of the grounding wire equipment and is connected with the bottom of the connecting component 5; the front side of the wire clamp 2 is provided with a ground wire connecting mechanism 2-1 connected with a ground wire, and the ground wire connecting mechanism 2-1 can be a screwed bolt.
According to the above embodiment, when the multi-direction adjusting ground wire clamp device is used for ground wire work, the required ground wire needs to be installed through the ground wire connecting mechanism 2-1, then the angle adjustment is performed through the adjusting mechanism 3-1 on the angle adjusting component 3, after the ground wire equipment is adjusted to a proper angle, the insulating rod 6 is moved upwards to a proper position, the ground wire is positioned in the annular space where the pressing tongue 4-4 and the wire clamp 2 enclose to fix/release the cable, then the rotating shaft 4-1 of the spiral lifting component 4 is adjusted, the rotating shaft 4-1 drives the soft spring 4-2 to rotate, and the soft spring 4-2 transmits the acting force to the double lead screw 4-3, so that the work of the ground wire can be completed.
Referring to fig. 2 and 3, during the operation, the angle needs to be adjusted to a proper position by the adjusting mechanism 3-1 on the angle adjusting component 3, and next, the operation of the angle adjusting component 3 will be described, wherein the angle adjusting component 3 is cylindrical, is located between the wire clamp 2 and the connecting component 5, and two ends of the angle adjusting component 3 are hinged steel plates as the cylindrical side walls, and are sleeved on two radial sides of the soft spring 4-2 of the spiral lifting component. The angle adjusting component 3 comprises an upper inserting pipe 3-5 and a lower inserting pipe 3-6, the upper inserting pipe 3-5 and the lower inserting pipe 3-6 are two pairs of sleeve type cylinders with the same structure, one pair of sleeve type cylinders comprises two cylinders with different sizes, one cylinder is positioned at the upper end of the other cylinder, the cylinder positioned at the upper part is internally provided with threads, the cylinder positioned at the lower part is externally provided with threads, the inner diameter of the cylinder positioned at the upper part is larger than the outer diameter of the cylinder positioned at the lower part, the two cylinders can be connected through the threads, in addition, each pair of sleeve type cylinders are also connected through a fixing mechanism 3-3, and the fixing mechanism 3-3 can be in nut connection or other connecting equipment.
In addition, the upper plug pipe 3-5 and the lower plug pipe 3-6 are connected by a connecting mechanism 3-4, which is substantially the small cylinder of the upper plug pipe 3-5 and the small cylinder of the lower plug pipe 3-6, or another connecting method can be adopted, namely, the small cylinder of the upper plug pipe 3-5 and the large cylinder of the lower plug pipe 3-6 are connected, and the connecting method can be selected according to the specific situation in the actual work; the connecting mechanisms 3-4 are hinged steel plates which are bilaterally symmetrical and have the same structure, one side of each connecting mechanism 3-4 is provided with an adjusting mechanism 3-1, the other side of each connecting mechanism 3-4 is provided with a matching mechanism 3-2 at a position symmetrical to the adjusting mechanism 3-1, the matching mechanisms 3-2 can be connected with bolts and nuts in a matching mode or other movable connecting devices, the angle is adjusted to a proper position by adjusting the adjusting mechanisms 3-1, and operation of workers is facilitated.
The large cylinder at the upper end of the upper plug pipe 3-5 is also provided with a first clamping mechanism 3-5-1 for clamping the wire clamp 2, and the first clamping mechanism 3-5-1 can be in bolt connection or other connection mechanisms; the large cylinder (or the small cylinder) at the lower end of the lower insertion pipe 3-6 is connected with a cylinder connecting piece through threads, wherein the inner diameter of the large cylinder (or the small cylinder) at the lower end of the lower insertion pipe 3-6 is larger than that of the cylinder connecting piece, a second clamping mechanism 3-6-1 for clamping the connecting piece 5 is arranged on the circumference of the cylinder connecting piece, the second clamping mechanism 3-6-1 is an annular clamping groove and is clamped in the annular clamping groove through a screw penetrating through the threaded connecting pin groove 5-1, coaxial assembly of the two is achieved, and the connecting piece 5 cannot fall off in the rotating process.
The connecting part 5 is sleeved with a large cylinder (or a small cylinder) of a lower insertion pipe 3-6 at the bottom of the angle adjusting part 3, the connecting part 5 is cylindrical, and a regular polygon inner hole for clamping a regular polygon rod-shaped part is arranged in the axial direction of the connecting part 5 and used for clamping a polygonal rotating shaft 4-1; and has a thread on its inner and or outer wall to which the insulating rod 6 is attached.
As shown in fig. 4 and 5, pin grooves 5-1 are arranged at the left-right symmetrical positions of the top of the connecting part 5, the pin grooves 5-1 are T-shaped, and the pin grooves 5-1 at the top of the connecting part 5 are connected with second clamping mechanisms 3-6-1 arranged on annular grooves of cylindrical connecting pieces of the lower plug pipes 3-6; as shown in fig. 6, it is a schematic view after the T-shaped pin groove 5-1 at the top of the connecting member 5 is connected to the second clamping mechanism 3-6-1 of the cylinder connecting member of the lower socket pipe 3-6.
In addition, a connecting thread arranged outside the insulating rod 6 is arranged on the lower inner wall of the connecting part 5, so that the connecting part 5 and the insulating rod 6 can be connected. The connecting part 5 is positioned between the angle adjusting part 3 and the insulating rod 6, on one hand, the connecting part can support the angle adjusting part 3 at the upper end, and on the other hand, the lower part of the connecting part can be matched with the insulating rods 6 with different sizes.
Another embodiment may be adopted in which the cylindrical connecting member at the bottom of the angle adjusting member 3 is directly screwed to the insulating rod 6, and the cylindrical connecting member is directly screwed to the insulating rod 6.
The lower part of the connecting part 5 is internally provided with a hexagonal inner hole, the polygonal inner hole at the lower part of the connecting part 5 is in adaptive connection with a polygonal rotating shaft 4-1 of the spiral lifting part 4, namely the connecting part 5 is used for being inserted with the insulating rod 6 and the rotating shaft 4-1, and the upper part of the connecting part 5 is designed to be in circular insertion connection, the insulating rod 6 is rotated to drive the connecting part 5 to rotate together to drive the hexagonal inner hole of the connecting part 5, the hexagonal inner hole of the connecting part 5 applies a transverse rotating force to the rotating shaft 4-1, the rotating shaft 4-1 drives the soft spring 4-2 to rotate, the acting force is transmitted to the double lead screws 4-3 through the soft spring 4-2 between the rotating shaft 4-1 and the double lead screws 4-3, the transverse rotating force is converted into an ascending along the linear direction of the double lead screws 4-3 to promote the linear ascending of the double lead screws 4-3, so as to achieve the purpose of engaging the lead, and the rotating force can be reduced into the upper insertion pipe 3-5 by adopting the double lead screws 4-3 to facilitate the operation of engaging the lead.
The wire clamp 2 further comprises a ground wire connecting mechanism 2-1 arranged on the front side, and the ground wire connecting mechanism 2-1 can be set to be a screwed bolt.
The pressing tongue 4-4 is fixedly connected with the thread part of the wire clamp 2.
The wire clamp 2 is C-shaped. The C-shaped device can prevent the lead from slipping after the pressing tongue 4-4 bites the lead.
In the specific implementation process, the utility model discloses a multidirectional regulation earth connection device has angle adjusting part 3 and spiral lifting unit 4 through the adoption, and the electric power fortune dimension personnel of being convenient for installs the interlock degree of in-process through the rising and the decline control fastener 2 of two lead screws 4-3 at the earth connection to through the rotation adjustment fastener 2 slope of the gear circulator of adjustment mechanism 3-1 on the angle adjusting part 3 direction, and, because what adopt in the angle adjusting part 3 is soft spring 4-2 transition, can adapt to the direction of angle adjustment, and the rebound insulator spindle 6, after moving to appropriate position, make the earth connection be located press tongue 4-4 with in the annular space that fastener 2 encloses into the fixed/release cable, readjust afterwards in the pivot 4-1 of spiral lifting unit 4, pivot 4-1 drives soft spring 4-2 rotates, soft spring 4-2 transmits the effort again for two lead screws 4-3, adapt to different earth connection demands, guarantee the firm reliability of earth connection, thereby to the stable safe operation of power equipment provide good guarantee, promote the operational efficiency and the operational safety of the operational efficiency of equipment, in time.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A multidirectional tuning ground wire apparatus, comprising: the wire clamp (2), the angle adjusting component (3), the spiral lifting component (4), the connecting component (5) and the insulating rod (6) are assembled and connected in sequence; the wire clamp (2) comprises a pressing tongue (4-4) which is lifted at the top of the spiral lifting part (4), and the pressing tongue (4-4) and the wire clamp (2) enclose an annular space for fixing/releasing a cable;
the angle adjusting part (3) is cylindrical, is sleeved on the soft spring (4-2) between the wire clamp (2) and the connecting part (5), and is provided with two pairs of hinged steel plates as cylindrical side walls which are positioned at two radial sides of the soft spring (4-2);
the spiral lifting component (4) is rod-shaped and comprises a rotating shaft (4-1), the soft spring (4-2), a double lead screw (4-3) and the pressing tongue (4-4) which is used for being matched and clamped with the wire clamp (2), and the rotating shaft (4-1) is a polygonal rod-shaped component; the double lead screws (4-3) and the rotating shaft (4-1) are respectively fixedly connected with two ends of the soft spring (4-2);
one end of the connecting component (5) is clamped with the rotating shaft (4-1) at the bottom of the spiral lifting component (4), and the other end of the connecting component is connected with the insulating rod (6).
2. Multidirectional adjustment ground connection according to claim 1, characterized in that said angular adjustment means (3) comprise: the device comprises an upper inserting pipe (3-5) and a lower inserting pipe (3-6), wherein the upper inserting pipe (3-5) and the lower inserting pipe (3-6) are two pairs of sleeve-type cylinders with the same structure;
each pair of sleeve-type cylinders comprises two cylinders with different sizes, one cylinder is positioned at the upper end of the other cylinder, the cylinder positioned at the upper part is internally provided with threads, the cylinder positioned at the lower part is externally provided with threads, the inner diameter of the cylinder positioned at the upper part is larger than the outer diameter of the cylinder positioned at the lower part, and the two cylinders are connected through the threads;
in addition, each pair of sleeve type cylinders are connected through a fixing mechanism (3-3) and a connecting mechanism (3-4).
3. A multidirectional adjustment ground wire device according to claim 2, wherein said connection member (5) is connected to the bottom of a lower insertion tube (3-6) of said angle adjustment member (3);
the connecting part (5) is cylindrical, and a polygonal inner hole of the rotating shaft (4-1) extending outwards in the lower inserting pipe (3-6) is clamped and connected in the radial direction;
and the inner wall of the lower part of the connecting part (5) is provided with a thread connected with the outer wall of the upper part of the insulating rod (6).
4. Multidirectional adjustment ground wire device according to claim 2, characterized in that said connection means (3-4) are hinged steel plates of bilateral symmetry and identical structure; one side of the connecting mechanism (3-4) is provided with an adjusting mechanism (3-1), and the other side is provided with a matching mechanism (3-2) at a position symmetrical to the adjusting mechanism (3-1).
5. The multidirectional adjusting ground wire device according to claim 1, wherein the double lead screw (4-3) penetrates through the angle adjusting part (3) and the bottom of the wire clamp (2) to extend into the wire clamp (2), the top of the double lead screw (4-3) is fixedly connected with the pressure tongue (4-4), the top end of the soft spring (4-2) is welded at the bottom of the double lead screw (4-3), the bottom end of the soft spring (4-2) is welded at the upper part of the rotating shaft (4-1), and the soft spring (4-2) is installed inside the angle adjusting part (3).
6. A multidirectional adjustment ground wire device according to claim 3, characterized in that the top of the connecting part (5) is provided with a pin slot (5-1), and the pin slot (5-1) adopts a T-letter shape.
7. Multidirectional adjusting ground connection according to claim 1, characterized in that the clamp (2) further comprises a ground connection (2-1) provided on the front side.
8. Multidirectional adjustment ground connection according to claim 1, characterized in that the tongue (4-4) is fixedly connected to a threaded portion of the clamp (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220427806.9U CN217545197U (en) | 2022-02-28 | 2022-02-28 | Multidirectional ground wire adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220427806.9U CN217545197U (en) | 2022-02-28 | 2022-02-28 | Multidirectional ground wire adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217545197U true CN217545197U (en) | 2022-10-04 |
Family
ID=83426808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220427806.9U Expired - Fee Related CN217545197U (en) | 2022-02-28 | 2022-02-28 | Multidirectional ground wire adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217545197U (en) |
-
2022
- 2022-02-28 CN CN202220427806.9U patent/CN217545197U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221004 |